Twitter pummels 'war criminal' Donald Rumsfeld after he laments that life's too short
Donald Rumsfeld at CPAC 2011 in Washington, D.C (National Constitution Center/Flickr)

Twitter users heaped scorn and derision on Donald Rumsfeld after the former secretary of defense lamented that he would not likely live long enough to see a flat tax enacted.

The 83-year-old Rumsfeld's tweet invited social media users to vent their anger at him over the Iraq War and other misdeeds when he served in the George W. Bush administration.